What is an electronic oil tester?
The frying oil tester is a measuring instrument that allows you to determine the quality of different types of frying oils.
Lightweight and easy to use, the Frying Oil Tester can simultaneously display frying oil temperature and % TPM value.
The % TPM (Total Polar Matter) value allows the user to judge the aging and quality of cooking oil, which deteriorates over time due to heating .
The probe's measuring tip is placed directly into the hot frying oil and in less than 30 seconds the user can establish the temperature and quality of the oil.
The %TPM value is a measure of the thermal oxidative stress level of a frying oil.
The frying oil tester incorporates an LED color change functionGREEN, ORANGE or RED easy to read, which lets you know if the oil is or should be soon to be changed.
By changing the oil only when necessary, you can save time and money, as well as reduce waste.
Suitable for measuring olive oil, palm oil, rapeseed oil, peanut oil, soybean oil, sesame oil, vegetable oils and animal fats.
How does the electronic oil tester work?
Digital Frying Oil Tester and Thermometer tests the Total Polar Matter (TPM) of frying oils.
TPM measures the amount of polar materials in the oil.
A molecule is polar because the negatively charged electrons that spin are not evenly distributed (odd number), whereas a non-polar molecule has evenly distributed electrons (even number).
As an example, water is a very polar material and oil is nonpolar, which means water would separate from oil as shown the image below (imagine magnets):
TPM Polar Materials
Triglycerides are also detected using TPM.
These are compounds combined with 1 molecule of glycerol and 3 fatty acids, so they are larger molecules than the singular fatty acids that the test strips detect.
The digital tester measures how many of these 'largest' polar molecules show up in the oil and provides a TPM percentage (%TPM) on the LCD display.
24% TPM is considered the percentage at which frying oil is no longer suitable for human consumption.
This is done via a dielectric constant measurement between 2 capacitance plates.
Technical features
Range: 0 to 40% RPM and 30 to 200°C
Resolution: 0.5% TPM and 0.1°C
Accuracy: ± 3% RPM and ± 1.5°C
Battery: 2 x 1.5 volt AAA
Battery Life: 25 hours of continuous use
Sensor type: capacitance
Display: Custom LCD
Dimensions: 31 x 48 x 365mm
Weight: 250 grams
